Condenser.



(1.]. SNOW.

CONDENSER.

APPLICATION FILEDMAR. 9, 19:6.

Patented July 10, 1917.

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WITNESSES 7/3 NVENT-ORM 4%,

ATTORNEYS CHARLES J. SNOW, OF REDWOOD CITY, CALIFORNIA.

CONDENSER.

Specification of Letters Patent.

Patented July 10, 1917.

Application filed March 9, 1916. Serial No. 83,016.

To all whom it may concern:

Be it known that I, CHARLES J. SNOW, a subject of the King of GreatBritain, residing at Redwood City, county of San Mateo, State ofCalifornia, have invented a new and useful Condenser, of which thefollowing is a specification.

My invention relates to the general class of condensers for which UnitedStates Letters Patent No. 956,210, were granted to me upon April 26th,1910.

The primary object of my present invention is to secure in a steamcondenser of ordinary and typical shape,cylindrical, quadrangular orpolygonal,a thorough distribution of steam without the interposition ofany considerable number, of steam deflecting baffles.

In surface condensers of this class, from which the air and uncondensedvapors are withdrawn separately from the water of condensation as isvery essential in securing high vacua, and in which the air anduncondensed vapor and water are drawn off through the bottom of thecondenser and the air and vapor cooled by the condensing water, it is ofadvantage to simplify the construction and relation of the essentialparts so that the structure in its entirety may possess the capacity ofuniform operation. and be of comparatively simple and inexpensiveconstruction.

With these objects in view, my invention comprehends a condenser of thegeneral character represented in the accompanying drawings andhereinafter described, the particular features which I claim as novelbeing specified in the claiming clauses.

For the purpose, therefore, of illustrating my invention I have in theaccompanying drawings shown two embodiments of it at present preferredby me, because in practice they give satisfactory and reliable re sults.It is to be understood, however, that my invention is not limited to theprecise construction, formation or application of the typical componentswhich in the pre ferred forms are represented and described.

In the'drawings:-

Figure 1 represents a transverse, sectional, elevation, on the dottedline 11 of Fig. 3,+sight"being taken in the direction of the arrows uponsaid line,of a condenser embodying my invention.

Fig. 2 represents a view similar to that of Fig. 1 except that it istaken upon the dotted line 2-2 of Fig. 3.

Fig. 3 represents in central, longitudinal, vertical, section, thecondenser of Figs. 1 and 2. I

Fig. 4 represents a section of a portion of a modification.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings 1 designates the casing of the condenser,which I have illustrated as of cylindric form. The casing is closed atone end by the water inlet chamber 2 and the water outlet chamber 3, ofany preferred construction and internally divided by the diaphragm 4.Into the water inlet chamber leads the water inlet 5 through which thewater is pumped by a pump, not shown, and from out the water outletchamber leads the water outlet 6.

The opposite end of the casing is inclosed by a circular cap which formswhat I designate the return chamber 7 Between the inner sheet walls ofthe water inlet chamber and the water outlet chamber at the one end ofthe casing, and the inner sheet wall of the return chamber at the otherend, are introduced and swaged the ends of groups of longitudinallyextending water tubes 8, which in my preferred organization are disposedin such mutual direction and. relation as will be best understood fromFigs. 1 and 2;that is to say, certain of them lie closely to and inparallelism with the inner cylindrical walls of the casing, whilecertain others are extended in preferably parallel and adjacent planescorresponding generally to the location of the diaphragm between thewater chambers, still others lie both above and below what Iterm thebasal baffle plate 9, and above the lateral baffle plates 10.

An upper group of the tubes, nearly cen tral of the casing and near itsupper portion, are collocated in a form presenting, when viewed from theend, that of an in verted cone.

Across the lower part of the casing and near its bottom is the principalbaflle plate whichI have, for convenience, designated as the basal plate9, which extends the entire length of the casing and is properly flangedas at 11 for attachment to the casing, and-preferably slightly dishedtoward its median line.

12 designates lateral ports, any desired number of which are employed,locaEd along and cut through the outer edges of the basal bafile plateand close to the walls of the casing. I

13 designates central ports along and cut through the central line ofthebasal bathe plate, from and through which the condensed steam water fromthe upper tubes drains into the trough or compartment let, and isultimately drawn off through the wet suction pump outlet 15.

16 designates air ports cut through and along the upper side wallsof thetrough 14:.

17 designates apertures in the lateral baffle plates 10, relativelydisposed in the desired numberlongitudinally of said plates.

18 designates a dry air pump outlet which is connected to an air pump,not illustrated. This outlet is preferably placed near the end of. thecasing which is closed by the return chamber, and its form is preferablycup-shaped as illustrated, its upper-conformation being that of acentral supporting plate 19 upon which the bottom'of the trough 14 "mayrest, and'two receiving throats 2O which extend sufliciently above thebottom walls of the casing to make it possible for the fluid enteringsaid throats to enter and pass through them, the water of eondensationpassing out through said suction pump outlet 15. c 7 a The connectionsof both the suction wet air pump outlet 15 .and the suction dry air pumpoutlet 18 with the bottom of the easing, are such as convenience ofmanufacture may dictate.

The steam inlet into the casing is shown aslocated upon the upper partof the casing and is designated 21. V

22 designates a tube containing chamber formed between the basal baflieplate and the lower walls of the casing. 23 are apertures around thetrough let which lead into the-pump outlet 15.

So far as it has not already been described, the operation of mycondenser will'be readily understood. I

The steam introduced-within the casing will follow three general linesofflow, as

indicated by the arrows in Figs. 1 and 2, one of theselines being fromthe steam inlet to the central ports 13 and the other two being from thesteam inlet to each of the rows of lateral ports 12.

The condensed steam water from the tubes above the basal baffle platewill be collected,

so to speak, both by said bafile plate and by the lateral bafile plates10, and will. be drained into the trough and drawn oil by the suctionpump of the outlet 15.

The tube-containing chamber 22 below the basal baflle plate will se weefficiently to effect air-cooling and devaporizing, as the tubes withinsaid chamber will be protected from the condensed steam water from thetubes above the basal baflie plate.

The vapor from this chamber 22 will, as explained, be drawn off throughthe air pump outlet 18, while the drainage water will be drawn offthrough the water pump outlet- 15, through the apertures 23, whichsurround the trough about said outlet 15.

It will be apparent that by reason of the relationship which the troughlat bears to both of the pump outlets and to the two pumps with whichthey are respectively connected, the influence of the suction throughthe outlets will beexercised upon both the lateral and central ports ofthe basal baflle plate and upon the ports of the lateral battle plates,with the result that the direction of the flow of steam across all ofthe tubes will be induced and made continuous, and with the furtherresult of preventing any stagnation or accumulation of air in any partof the condenser and, therefore, of increasing its efficiency.

Referring to the embodiment represented in Fig. 1 of the drawings, Ishow a type of condenser where the higher, vacuate is not essential, butwhere efficiency secured by good distribution is as desirable as in theother type. The basal baiile plate here, rests upon a central supportingweb or plate 24. and is provided both with its lateral port 12, and alsowith sets of central ports 26, one upon each side of the web.

In this construction the support serves no purpose except that of beinga support and of dividing the tube-containing chamber 22 into twochambers which I have designated 22 and 22*.

27 designates lower ports leading from the sides of the supporting plateinto the suction pump outlet 15.

In the operation of this modified form of condenser, the lines of steamflow will be similar to those in the embodiment of Figs. 1, 2 and 3,theprovision of both the lateral and the central ports of the basal baiiieplate and of the lower ports 27 into the suction pump outlet, consideredin connection with the effect of the suction through both pump outlets,creating a region of low pressure about the lower ports 27, which inturn is felt at both the lateral and central ports of the basal baflieplate and thereby influences the lines of steam flow.

In this type of condenser the water and uncondensable vapors aretogether withdrawn through and by means of the suction pump of theoutlet 15.

It will now be apparent thatI have devised a new and useful condensingapparatus which embodies the features of advantage enumerated asdesirable and that while the embodiments illustrated and described havegiven satisfactory and reliable results, modifications of variouscharacter maybe made without departing from the invention broadlyconsidered or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A condensing apparatus of the character stated, comprising a casinghaving inlet and outlet water passages,water tubes traversing theinterior of the casing between said passages,--a stem inlet,a basalbafiie plate traversing the casing near its bottom and provided withboth lateral and central ports,lateral bafile plates provided with portsand disposed above the basal baffle plate,a trough longitudinallyextending within the casing, depending from the basal baflie plate,communicating With the central ports of said plate, and having air portsin its sides,a suction outlet for the air and vapors,and a suctionoutlet for the condensed Water leading from out the trough.

2. A condensing apparatus of the character stated, comprising a casinghaving inlet and outlet water passages,water tubes traversing theinterior of the casing between said passages,a steam inlet, a basalbaffie plate traversing the casing near its bottom and provided withboth lateral and cen tral ports,-lateral bafiie plates provided withports and disposed above the basal baffle plate,-a trough longitudinallyextending within the casing, depending from the basal baiHe plate,communicating with the central ports of said plate, and having air portsin its sides,a suction outlet for the air and vapors, formed withreceiving throats extending on each side of the trough above the bottomof the casing,and a suction outlet for the condensed water leading fromout the trough.

3. A condensing apparatus of the character stated, comprising a casinghaving inlet and outlet Water passages,-water tubes traversing theinterior of the casing between said passages and lying close to the sidewalls of the casing and also to the lateral baflie plates and the basalbalile plate, and extending Within the chamber below the basal baffleplate,a steam inlet,a basal battle plate traversing the casing near itsbottom and provided with both lateral and central ports,lateral baflieplates provided with ports and disposed above the basal baffie plate,-atrough longitudinally extending within the casing, depending from thebasal baflle plate, communicating with the central ports of said plate,and having air ports in its sides, a suction outlet for the air andvapors, formed with receiving throats extending on each side of thetrough above the bottom of the casing,and a suction outlet for thecondensed water leading from out the trough.

. 4. A condensing apparatus of the character stated, comprising a casinghaving inlet and outlet water passages,-water tubes traversing theinterior of the casing between said passages,a steam inlet,a basalbaffie plate traversing the casing near its bottom and provided withboth lateral and central ports, and dividing the casing into an uppertube-containing chamber and a lower tubecontaining cha1nber,lateralballle plates provided with ports and disposed above the basal baflieplates,a trough longitudinally extending within the casing, de-

pending from the basal baflie plate, communicating with the centralports of said plate, and having air ports in its sides,a suction outletfor the air and vapors, formed with receiving throats extending on eachside of the trough above the bottom of the casingand a suction outletfor the condensed Water leading from out the trough.

5. A condensing apparatus of the character stated, comprising a casinghaving inlet and outlet water passages,water tubes traversing theinterior of the casing between said passages and lying close to the sidewalls of the casing and also to the lateral battle plates and the basalbaflie plate, and extending within the chamber below the basal bailleplate, a steam inlet,-a basal baffle plate traversing the casing nearits bottom and provided with both lateral and central ports, anddividing the casing into an upper tube-containing chamber and a lowertube containing chamber, lateral bafl'le plates provided with ports anddisposed above the basal bafile plate,a trough longitudinally extendingWithin the casing, depending from the basal baffle plate, communicatingwith the central ports of said plate, and having air ports in itssides,--a suction outlet for the air and vapors, formed with receivingthroats extending on each side of the trough above the bottom of thecasing,-and a suction outlet for the condensed water leading from outthe trough.

6. A condensing apparatus of the character stated, comprising a casinghaving inlet and outelt water passages, water tubes traversing theinterior of the casing between said passages, a steam inlet, a basalbafiie plate traversing the casing near its bottom and provided withboth lateral and central ports and dividing the casing into an uppertube-containing chamber and a lower tubecontaining chamber, lateralbafile plates provided with portsand disposed above the basal baffleplate, a trough longitudinally extending within the casing below thebasal baffle communicating with'the central ports of bafile and formingbetween it and the bottom of the casing two chambers, a suction outletfor the air and vapors formed with receiving throats extending on eachside of the troughabove the bottom of the i CHARLES J. SNOW. In thepresence of 'l. Hnss, W. S. SOLARI.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

